Improvement in casting cylinders for meat-cutters



UNITED STATES PATENT Fries.

samer-n. rLUnn, or Asonrniivof'rox7 ooNNnertourr, AssIeNou 'ro ruoli snirn MANUFACTURING- eonraxr, or slain rm en;

IMPROVEMENT IN CASTING CYLvtNDERS FOR MEAT-CIUTTERS.

' Specification forming part ot' Letters Patent No. 29,440, dated nlyll, lSlO.

To @ZZ whom, it may eoncerm.

Be it known that S. R. PLUMn, of Southington, county of Hartford, and 'State of Gonnecticnt, have-.invented certain neWa-ndusefnl Improvements inA Patterns for .Forming Protubcrances or Projections on Cylindrical.

.ceed to describe its construction and opera-- tion, referring to the drawings, in which the same letters indicate like parts in each of the figures.

The nature of this improvement consists in making a pattern hollow, round, or of irregular sides or shape, and arranging therein proper mechanism for protruding outward such shaped protuberances or projections as may be desirable to -t'orm on the outside osuch shaped icyiiudrical body, and hold them out while the molding process is being performed, and also to retract (ordraw th e protuberances o'r proj ections) them from the mold into the body of the cylinder, while the tiask or mold is yet closed, so that the itaslior mold maybe opened ortaken apart and the pattern drawn therefrom Witlr out breaking or separating the particles ot' which the mold is formed or into which the melted metal is poured, to producer-he rc- .tfuired shaped cylinderV with its protubcrances or projections for meat cutters, and which it is proposed to use or apply tothe making` oi' cylinders having protubcrauees er projections for various other purposes.

The accompanying drawings show a dclineated vien `ot' a pattern made to produce a cylinder having its project ions for va 1neat -cutter, Src. v

u is a cylinder. b are the bearings or journals on which it (the cylinder) revolves.

c are core-prints for sustaining the core when placed nt'ter the pattern is removed and bet'ore the mold is closed t'or the purpose of t'orming the cylinder hollow, ('it'bciu'g the common or ordinalv way ot' t'ormingholloxv cylinders.)

l( aslittcd llangecam, madeiuthe proper manner to suit; the required resuttto he pro duced b v their action.

c is an actuatingrod extending through 'the journals b, cylinder a, and a sufcient distance from the ends of thejournals b to reach just outside -of .the tiaslc in which the cylinder cis to be molded, and having a button or handle, j', by which toturn it (the actuating-rod n) when required. Said rod c is provided with a spline, j, its'whole length inside of the cylinder a, onto which the cams dare tted, and

by which they are caused to turn with the rode. i

g are patterns of the protubcrances or projections,77 the' inner ends of which areforkcd so as to straddle the hub of the earn or shaft Z e, thereby causing each of their movements in and out tol'oe in a straight'linefrom the center throughthe shell or body ofthe cylin- A der a, the outer or proj eeting portion of which is 4made the Vshapethat the protuberances or projections are required to be upon the out- 1 side ofthecyliuder to be produced therefrom. -h are pins-secured. or formed on the side of the patterns y, and are fitted to the slits or cams '11, made in the flanges d.

The mode of mold'ng th's pattern is very much the same as that of molding other patterns, and when molded, and itis desired to remove the pattern from themold, the .worte man is enabled, by means of turning the button or handle f, (outside of the ilask,) to draw thtx projecting patterns into the body of the cylinder-pattern a. l'lethen removes the cope ot' theask and draws. the v vhole pattern from the mold in the ordinary Way, plaees the core therein, and' closes the iiaslir, when it'. will be in readiness to receive the melted iron or other metal. 'lhusit will he' seen that the any desirable shape, and eitend in any direction fromthe center of the cylinder through its shell Without any diiculty in the molding and dra'vving of the same. g

l believe I have clearly described the nature, construction, and operation of my irnprovemcnt in patterns, and in doing so have shoivn the advantage to be derived therefrom;

Vhnt. l el-aim, theretbre, and desire to secure by lletters .l.ate1it, isM

l. Making a pattern having j ii'otnberanees or proections 'extending `to different 'points from the center, so as to withdraw tte saine from the mold, While the'whole is closed-in In testimony whereof I h the ask by mezms'of proper mechanism ml range Within the pattern, substantially such as herein set forth and described.

2. A11 improved vmaimfztetlire of meat-outter cylinders, &e. produced by means substantially such :1s herein set forth and deserihed.

avehereunto set v my hand and axed nlysenl this 5th day of April', 1860. SALMON R. ILUMB. [L s.] In presence of H. S.' PRATT, JEREMY XV. Buss. 

